body {
  height: 100vh;
  background: linear-gradient(45deg, #2C3E50, #2980B9, #8E44AD, #E74C3C);
  background-size: 400% 400%;
  animation: gradientBg 30s ease-in-out infinite;
}

@keyframes gradientBg {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
} 